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                        序言
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                            <b>1.</b>
                        
                        认识爬虫
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                            <b>1.1.</b>
                        
                        HTTP
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                            <b>1.2.</b>
                        
                        requests
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                            <b>1.3.</b>
                        
                        初步爬虫小项目
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        <li class="chapter " data-level="2" data-path="正则表达式/正则表达式.html">
            
                
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                            <b>2.</b>
                        
                        正则表达式
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                            <b>2.1.</b>
                        
                        正则表达式练习
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                            <b>2.2.</b>
                        
                        正则表达式之后的第一个项目
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                            <b>2.3.</b>
                        
                        正则表达式常用表
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                            <b>2.4.</b>
                        
                        正则表达式重点
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                            <b>2.5.</b>
                        
                        正则表达式常问问题
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        <li class="chapter " data-level="2.6" data-path="正则表达式/正则爬虫练习.html">
            
                
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                            <b>2.6.</b>
                        
                        正则爬虫项目练习
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        <li class="chapter " data-level="3" data-path="XPATH/xpath-in.html">
            
                
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                            <b>3.</b>
                        
                        XPATH
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        <li class="chapter " data-level="3.1" data-path="XPATH/Xpath.html">
            
                
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                            <b>3.1.</b>
                        
                        XPATH认识
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        <li class="chapter " data-level="3.2" data-path="XPATH/Xpath的代码例子.html">
            
                
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                            <b>3.2.</b>
                        
                        XPATH的代码例子
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                            <b>3.3.</b>
                        
                        XPATH的爬虫练习
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        <li class="chapter " data-level="4" data-path="BeautifulSoup/BeautifulSoup.html">
            
                
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                            <b>4.</b>
                        
                        BeautifulSoup
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="4.1" data-path="BeautifulSoup/常用的css选择器.html">
            
                
                    <a href="../BeautifulSoup/常用的css选择器.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>4.1.</b>
                        
                        常用的css选择器
                    </a>
            
            
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        <li class="chapter " data-level="4.2" data-path="BeautifulSoup/BeautifulSoup4的各种例子.html">
            
                
                    <a href="../BeautifulSoup/BeautifulSoup4的各种例子.html">
                
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                            <b>4.2.</b>
                        
                        BeautifulSoup4的各种例子
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        <li class="chapter " data-level="5" data-path="代理/proxy.html">
            
                
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                            <b>5.</b>
                        
                        ip代理池项目
                    </a>
            
            
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        <li class="chapter " data-level="6" data-path="Selenium/Selenium.html">
            
                
                    <a href="../Selenium/Selenium.html">
                
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                            <b>6.</b>
                        
                        Selenium
                    </a>
            
            
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        <li class="chapter " data-level="7" data-path="进程线程协程/introduce.html">
            
                
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                            <b>7.</b>
                        
                        进程线程协程
                    </a>
            
            
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        <li class="chapter " data-level="7.1" data-path="进程线程协程/gevent.html">
            
                
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                            <b>7.1.</b>
                        
                        gevent
                    </a>
            
            
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        <li class="chapter " data-level="7.2" data-path="进程线程协程/green_let.html">
            
                
                    <a href="../进程线程协程/green_let.html">
                
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                            <b>7.2.</b>
                        
                        green_let
                    </a>
            
            
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        <li class="chapter " data-level="7.3" data-path="进程线程协程/yield.html">
            
                
                    <a href="../进程线程协程/yield.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>7.3.</b>
                        
                        yield
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        <li class="chapter " data-level="7.4" data-path="进程线程协程/multiprecessing.html">
            
                
                    <a href="../进程线程协程/multiprecessing.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>7.4.</b>
                        
                        multiprecessing
                    </a>
            
            
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        <li class="chapter " data-level="7.5" data-path="进程线程协程/threading.html">
            
                
                    <a href="../进程线程协程/threading.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>7.5.</b>
                        
                        threading
                    </a>
            
            
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            </ul>
            
        </li>
    
        <li class="chapter " data-level="8" data-path="scrapy框架/scrapy.html">
            
                
                    <a href="../scrapy框架/scrapy.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.</b>
                        
                        Scrapy
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="8.1" data-path="scrapy框架/scrapy_setting.html">
            
                
                    <a href="../scrapy框架/scrapy_setting.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.1.</b>
                        
                        scrapy_setting
                    </a>
            
            
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        <li class="chapter " data-level="8.2" data-path="scrapy框架/模块作用.html">
            
                
                    <a href="../scrapy框架/模块作用.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.2.</b>
                        
                        模块作用
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="8.3" data-path="scrapy框架/19个中间件.html">
            
                
                    <a href="../scrapy框架/19个中间件.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>8.3.</b>
                        
                        19个中间件
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="9" data-path="scrapy-redis分布式/scrapy-redis.html">
            
                
                    <a href="../scrapy-redis分布式/scrapy-redis.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>9.</b>
                        
                        scrapy-redis分布式
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="9.1" data-path="scrapy-redis分布式/scrapy-redis的改造方法.html">
            
                
                    <a href="../scrapy-redis分布式/scrapy-redis的改造方法.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>9.1.</b>
                        
                        scrapy-redis的改造方法
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="10" data-path="spider_projects/introduce.html">
            
                
                    <a href="../spider_projects/introduce.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.</b>
                        
                        spider_projects
                    </a>
            
            
            <ul class="articles">
                
    
        <li class="chapter " data-level="10.1" data-path="spider_projects/使用代理在普通爬虫脚本下.html">
            
                
                    <a href="../spider_projects/使用代理在普通爬虫脚本下.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.1.</b>
                        
                        使用代理在普通爬虫脚本下
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.2" data-path="spider_projects/xpath爬取前程无忧的数据.html">
            
                
                    <a href="../spider_projects/xpath爬取前程无忧的数据.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.2.</b>
                        
                        xpath爬取前程无忧的数据
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.3" data-path="spider_projects/存储数据库的脚本.html">
            
                
                    <a href="../spider_projects/存储数据库的脚本.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.3.</b>
                        
                        存储数据库的脚本
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.4" data-path="spider_projects/weibo.html">
            
                
                    <a href="../spider_projects/weibo.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.4.</b>
                        
                        爬取央视新闻微博
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.5" data-path="spider_projects/weibo2.html">
            
                
                    <a href="../spider_projects/weibo2.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.5.</b>
                        
                        爬取明星的微博
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.6" data-path="spider_projects/liepin.html">
            
                
                    <a href="../spider_projects/liepin.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.6.</b>
                        
                        爬取猎聘的职位信息Crawl
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.7" data-path="spider_projects/zhilianRe.html">
            
                
                    <a href="../spider_projects/zhilianRe.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.7.</b>
                        
                        纯正则爬取智联的职位信息
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.8" data-path="spider_projects/setting.html">
            
                
                    <a href="../spider_projects/setting.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.8.</b>
                        
                        scrapy中的setting
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.9" data-path="spider_projects/items.html">
            
                
                    <a href="../spider_projects/items.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.9.</b>
                        
                        scrapy中的items
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.10" data-path="spider_projects/pipeline.html">
            
                
                    <a href="../spider_projects/pipeline.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.10.</b>
                        
                        scrapy中的pipeline
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.11" data-path="spider_projects/middlewares.html">
            
                
                    <a href="../spider_projects/middlewares.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.11.</b>
                        
                        scrapy中的middlewares
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="10.12" data-path="spider_projects/框架中的代码运行脚本.html">
            
                
                    <a href="../spider_projects/框架中的代码运行脚本.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>10.12.</b>
                        
                        框架中的代码运行脚本
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="11" data-path="爬虫的面试题/面试题1-10.html">
            
                
                    <a href="../爬虫的面试题/面试题1-10.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>11.</b>
                        
                        爬虫面试题
                    </a>
            
            
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<li>&#x6839;&#x636E;&#x6A21;&#x5F0F;&#x5339;&#x914D;&#x4ECE;&#x5B57;&#x7B26;&#x4E32;&#x4E2D;&#x63D0;&#x53D6;&#x4E00;&#x4E2A;&#x5B50;&#x5B57;&#x7B26;&#x4E32;&#x3002;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x5728;&#x6587;&#x672C;&#x6216;&#x8005;&#x8F93;&#x5165;&#x5B57;&#x6BB5;&#x4E2D;&#x67E5;&#x627E;&#x7279;&#x5B9A;&#x7684;&#x6587;&#x5B57;&#x3002;</li>
</ol>
<hr>
<h2 id="&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#x7684;&#x4F7F;&#x7528;">&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#x7684;&#x4F7F;&#x7528;</h2>
<p><code>match</code> <code>search</code> <code>findall</code> <code>finditer</code> <code>sub</code></p>
<p><code>re.match</code>&#xFF1A; &#x5C1D;&#x8BD5;&#x4ECE;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x8D77;&#x59CB;&#x4F4D;&#x7F6E;&#x5339;&#x914D;&#x4E00;&#x4E2A;&#x6A21;&#x5F0F;&#xFF0C;&#x5982;&#x679C;&#x4E0D;&#x662F;&#x8D77;&#x59CB;&#x4F4D;&#x7F6E;&#x5339;&#x914D;&#x6210;&#x529F;&#x7684;&#x8BDD;&#xFF0C;match()&#x5C31;&#x8FD4;&#x56DE;None&#x3002;</p>
<p><code>re.search</code>&#xFF1A; &#x626B;&#x63CF;&#x6574;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x5E76;&#x8FD4;&#x56DE;&#x7B2C;&#x4E00;&#x4E2A;&#x6210;&#x529F;&#x7684;&#x5339;&#x914D;&#x3002;</p>
<p><strong><code>match</code> &#x4E0E; <code>search</code> &#x7684;&#x533A;&#x522B;</strong>&#xFF1A;re.match&#x53EA;&#x5339;&#x914D;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x5F00;&#x59CB;&#xFF0C;&#x5982;&#x679C;&#x5B57;&#x7B26;&#x4E32;&#x5F00;&#x59CB;&#x4E0D;&#x7B26;&#x5408;&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#xFF0C;&#x5219;&#x5339;&#x914D;&#x5931;&#x8D25;&#xFF0C;&#x51FD;&#x6570;&#x8FD4;&#x56DE;None&#xFF1B;&#x800C;re.search&#x5339;&#x914D;&#x6574;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#xFF0C;&#x76F4;&#x5230;&#x627E;&#x5230;&#x4E00;&#x4E2A;&#x5339;&#x914D;&#x3002;</p>
<p><code>re.findall</code>   &#x5728;&#x5B57;&#x7B26;&#x4E32;&#x4E2D;&#x627E;&#x5230;&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#x6240;&#x5339;&#x914D;&#x7684;&#x6240;&#x6709;&#x5B50;&#x4E32;&#xFF0C;&#x5E76;&#x8FD4;&#x56DE;&#x4E00;&#x4E2A;&#x5217;&#x8868;&#xFF0C;&#x5982;&#x679C;&#x6CA1;&#x6709;&#x627E;&#x5230;&#x5339;&#x914D;&#x7684;&#xFF0C;&#x5219;&#x8FD4;&#x56DE;&#x7A7A;&#x5217;&#x8868;&#x3002; &#x6CE8;&#x610F;&#xFF1A; match &#x548C; search &#x662F;&#x5339;&#x914D;&#x4E00;&#x6B21; findall &#x5339;&#x914D;&#x6240;&#x6709;&#x3002;</p>
<p><code>re.finditer</code> &#x548C; <code>findall</code> &#x7C7B;&#x4F3C;&#xFF0C;&#x5728;&#x5B57;&#x7B26;&#x4E32;&#x4E2D;&#x627E;&#x5230;&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#x6240;&#x5339;&#x914D;&#x7684;&#x6240;&#x6709;&#x5B50;&#x4E32;&#xFF0C;&#x5E76;&#x628A;&#x5B83;&#x4EEC;&#x4F5C;&#x4E3A;&#x4E00;&#x4E2A;&#x751F;&#x6210;&#x5668;&#x8FD4;&#x56DE;.</p>
<hr>
<h2 id="&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#x7684;&#x4F18;&#x7F3A;&#x70B9;">&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#x7684;&#x4F18;&#x7F3A;&#x70B9;</h2>
<h5 id="&#x4F18;&#x70B9;&#xFF1A;">&#x4F18;&#x70B9;&#xFF1A;</h5>
<p>&#x7B80;&#x5355;&#xFF0C;&#x5F3A;&#x5927;&#x3002;&#x53EA;&#x8981;&#x719F;&#x7EC3;&#x5E94;&#x7528;&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#xFF0C;&#x800C;&#x4E14;&#x5339;&#x914D;&#x7684;&#x76EE;&#x6807;&#x662F;&#x7EAF;&#x6587;&#x672C;&#xFF0C;&#x90A3;&#x4E48;&#x76F8;&#x6BD4;&#x4E8E;&#x5199;&#x5206;&#x6790;&#x5668;&#x6765;&#x8BF4;&#xFF0C;&#x6B63;&#x5219;&#x53EF;&#x4EE5;&#x66F4;&#x5FEB;&#x901F;&#x7684;&#x5B8C;&#x6210;&#x5DE5;&#x4F5C;&#x3002;</p>
<p>&#x8FD8;&#x6709;&#x5728;&#x6355;&#x83B7;&#x5B57;&#x7B26;&#x4E32;&#x7684;&#x80FD;&#x529B;&#xFF0C;&#x6B63;&#x5219;&#x4E5F;&#x53EF;&#x4EE5;&#x5F88;&#x597D;&#x7684;&#x5B8C;&#x6210;&#x5DE5;&#x4F5C;&#xFF0C;&#x6BD4;&#x5982;&#x622A;&#x53D6;url&#x7684;&#x57DF;&#x540D;&#x6216;&#x8005;&#x5176;&#x4ED6;&#x7684;&#x5185;&#x5BB9;&#x7B49;&#x7B49;&#x3002;</p>
<h5 id="&#x7F3A;&#x70B9;&#xFF1A;">&#x7F3A;&#x70B9;&#xFF1A;</h5>
<ol>
<li>&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#x53EA;&#x9002;&#x5408;&#x5339;&#x914D;&#x6587;&#x672C;&#x5B57;&#x9762;&#xFF0C;&#x4E0D;&#x9002;&#x5408;&#x5339;&#x914D;&#x6587;&#x672C;&#x610F;&#x4E49;&#xFF1A;&#x50CF;&#x5339;&#x914D;url&#xFF0C;email&#x8FD9;&#x79CD;&#x7EAF;&#x6587;&#x672C;&#x7684;&#x5B57;&#x7B26;&#x5C31;&#x5F88;&#x597D;&#xFF0C;&#x4F46;&#x6BD4;&#x5982;&#x5339;&#x914D;&#x591A;&#x5C11;&#x8303;&#x56F4;&#x5230;&#x591A;&#x5C11;&#x8303;&#x56F4;&#x7684;&#x6570;&#x5B57;&#xFF0C;&#x5982;&#x679C;&#x4F60;&#x8FD9;&#x4E2A;&#x8303;&#x56F4;&#x5F88;&#x590D;&#x6742;&#x7684;&#x8BDD;&#x7528;&#x6B63;&#x5219;&#x5C31;&#x5F88;&#x9EBB;&#x70E6;&#x3002;&#x6216;&#x8005;&#x5339;&#x914D;html&#xFF0C;&#x8FD9;&#x4E2A;&#x662F;&#x5F88;&#x591A;&#x4EBA;&#x7ECF;&#x5E38;&#x9047;&#x5230;&#x7684;&#xFF0C;&#x5199;&#x4E00;&#x4E2A;&#x590D;&#x6742;&#x5339;&#x914D;html&#x7684;&#x6B63;&#x5219;&#x5F88;&#x9EBB;&#x70E6;&#xFF0C;&#x4E0D;&#x5982;&#x4F7F;&#x7528;&#x9488;&#x5BF9;&#x7279;&#x5B9A;&#x610F;&#x4E49;&#x7684;&#x5904;&#x7406;&#x5668;&#x6765;&#x5904;&#x7406;&#xFF08;&#x6BD4;&#x5982;&#x5199;&#x8BED;&#x6CD5;&#x5206;&#x6790;&#x5668;&#xFF0C;dom&#x5206;&#x6790;&#x5668;&#x7B49;&#xFF09;</li>
<li>&#x5BB9;&#x6613;&#x5F15;&#x8D77;&#x6027;&#x80FD;&#x95EE;&#x9898;&#xFF1A;&#x50CF;.*&#x8FD9;&#x79CD;&#x8D2A;&#x5A6A;&#x5339;&#x914D;&#x7B26;&#x53F7;&#x5F88;&#x5BB9;&#x6613;&#x9020;&#x6210;&#x5927;&#x91CF;&#x7684;&#x56DE;&#x6EAF;&#xFF0C;&#x6027;&#x80FD;&#x6709;&#x65F6;&#x5019;&#x4F1A;&#x6709;&#x4E0A;&#x767E;&#x4E07;&#x500D;&#x7684;&#x4E0B;&#x964D;&#xFF0C;&#x7F16;&#x5199;&#x597D;&#x7684;&#x6B63;&#x5219;&#x8868;&#x8FBE;&#x5F0F;&#x8981;&#x5BF9;&#x6B63;&#x5219;&#x5F15;&#x64CE;&#x6267;&#x884C;&#x65B9;&#x5F0F;&#x6709;&#x5F88;&#x6E05;&#x695A;&#x7684;&#x7406;&#x89E3;&#x624D;&#x53EF;&#x4EE5;</li>
<li>&#x6B63;&#x5219;&#x7684;&#x66FF;&#x6362;&#x529F;&#x80FD;&#x8F83;&#x5DEE;&#xFF1A;&#x751A;&#x81F3;&#x6CA1;&#x6709;&#x57FA;&#x672C;&#x7684;&#x622A;&#x53D6;&#x5B57;&#x7B26;&#x4E32;&#x6216;&#x8005;&#x628A;&#x9996;&#x5B57;&#x6BCD;&#x6539;&#x53D8;&#x5927;&#x5C0F;&#x5199;&#x7684;&#x529F;&#x80FD;&#xFF0C;&#x8FD9;&#x5BF9;&#x4E8E;url&#x91CD;&#x5199;&#x5F15;&#x64CE;&#x6709;&#x65F6;&#x5019;&#x662F;&#x81F4;&#x547D;&#x7684;&#x5F71;&#x54CD; </li>
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